Chemistry, 09.09.2021 03:40, prettygirllniyiaa

How many moles of copper are present in a sample of tennantite with a mass of 2890 grams?

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Chemistry, 22.06.2019 03:30, acaciacoats

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.

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Chemistry, 22.06.2019 16:00, anaalashay

How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?

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Chemistry, 22.06.2019 17:00, davisnaziyahovz5sk

The arrangement of particles is most ordered in a sample of

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Chemistry, 23.06.2019 00:20, HernanJe6

Steam reforming of methane ( ch4) produces "synthesis gas," a mixture of carbon monoxide gas and hydrogen gas, which is the starting point for many important industrial chemical syntheses. an industrial chemist studying this reaction fills a 1.5 l flask with 3.5 atm of methane gas and 1.3 atm of water vapor at 43.0°c. he then raises the temperature, and when the mixture has come to equilibrium measures the partial pressure of carbon monoxide gas to be 1 .0 atm. calculate the pressure equilibrium constant for the steam reforming of methane at the final temperature of the mixture. round your answer to 2 significant digits.